3. In a certain school, there are 456 girls. Calculate the total number of students if 24% of the total students are girls.

4.A man got 20% increase in his salary. His new salary is 24,000 rupees Find his
original salary

PLS I need the answers in like 5 to 10 minutes pls

Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels. which of these statements are true? check all that apply. there are 20c3 possible ways to choose three books to read. there are 5c3 possible ways to choose three mysteries to read. there are 15c3 possible ways to choose three books that are not all mysteries. the probability that mariah will choose 3 mysteries can be expressed as . the probability that mariah will not choose all mysteries can be expressed as 1 −